Table 1.

Systems involved in patients with an IBMFS

SystemFADCDBASDS
Hematology Aplastic anemia, MDS, AML Aplastic anemia, MDS, AML, lymphomas Anemia, MDS, AML Neutropenia, aplastic anemia, MDS, AML 
Oncology Head and neck SCC (tongue), vulvar SCC, esophagus, brain, skin Head and neck SCC (tongue), anogenital SCC, stomach, lung, esophagus, skin Colon, lung, osteosarcoma, gynecologic, stomach Ovarian cancer 
Perinatal Low birth weight, intrauterine growth retardation Low birth weight, intrauterine growth retardation Low birth weight, hydrops Low birth weight 
Skin Café au lait spots, basal cell, and SCC Lacy reticulated pigmentation, dystrophic nails (soft, brittle, ridged, disappearing), adermatoglyphia, hyperhidrosis, basal cell, and SCCs — Ichthyosis, eczema 
Skeletal Absent or abnormal thumbs, absent or hypoplastic radius; flat thenar eminence; Klippel Feil, congenital hip dislocation Avascular necrosis hips or shoulders, osteoporosis, scoliosis, spontaneous fractures Thumbs triphalangeal, bifid, duplicated, subluxed, extra, hypoplastic; web neck, Sprengel, Klippel-Feil, short neck; scoliosis Metaphyseal dysostosis; small thorax, narrow chest, pectus carinatum; dysplastic hips, bow legs, short legs, Legg Calve Perthes; short neck; scoliosis; flared ribs; osteopenia 
Eyes Microphthalmia, microcornea, ptosis, epicanthal folds, strabismus, cataracts Epiphora (from lacrimal duct stenosis), blepharitis, exudative retinopathy, retinal neovascularization, retinal hemorrhages, entropion, ectropion, cataracts Small, epicanthal folds, hypertelorism, hypotelorism, strabismus, cataract, glaucoma Hypertelorism, retinitis pigmentosum, esotropia 
Kidney Ectopic, horseshoe, absent, small, hydronephrosis, hydroureter — Horseshoe, duplicated, ectopic, absent — 
Gonads, male Small testes, infertility, undescended, micropenis Urethral stricture, phimosis, small testes, undescended testes, meatal stenosis, hypospadias Undescended testes, hypospadias, inguinal hernia Atrophic testes, hypospadias 
Gonads, female Small ovaries, bicornuate uterus, late menarche, early menopause, premature ovarian failure, vulvar cancer, breast cancer Hymenal and urethral stricture — — 
Pregnancies Decreased blood counts, fetal loss, pre-eclampsia, failure of labor to progress, cesarean sections, small babies No apparent problems Worsening of anemia, fetal loss, pre-eclampsia, intrauterine growth retardation, preterm deliveries, fetal malformations, placental infarcts — 
Development Developmental delay, retardation Developmental delay, retardation Developmental delay, retardation Developmental delay, neurocognitive deficits, attention deficit 
Otology Abnormal pinna, narrow canal, conductive or sensory hearing loss Deaf rare Low set, small, deaf Decreased hearing 
Cardiology Congenital heart disease, iron overload Hyperlipidemia Congenital heart disease, iron overload Congenital heart disease 
Endocrine Short, diabetes, metabolic syndrome, growth hormone deficiency, osteoporosis, hypothyroid, delayed bone age Short, bone problems (see skeletal), hypogonadism, elevated cholesterol (on androgens) Short Short 
Gastroenterology Imperforate anus, TE fistula, esophageal/duodenal atresia, annular pancreas, gastric emptying delay, poor weight gain, poor feeding, esophageal SCC Esophageal stenosis, telangiectasias, varices, ulcers, enteropathy (small bowel), enterocolitis (colon), rectal adenocarcinoma Stomach and colon cancer Malabsorption due to exocrine pancreatic insufficiency; diarrhea; inguinal hernia 
Liver Cirrhosis, fibrosis, elevated enzymes, iron overload, androgen toxicity, adenoma, hepatocellular carcinoma, peliosis hepatis Cirrhosis, fibrosis, hepatocellular carcinoma, hepatopulmonary syndrome, portal hypertension, iron overload Iron overload, hepatocellular carcinoma Rare hepatomegaly 
Head Microcephaly Microcephaly Microcephaly, hydrocephalus; cleft palate, cleft lip Microcephaly, macrocephaly, hydrocephaly; cleft palate, cleft lip 
Brain Pituitary stalk interruption, small pituitary, hypopituitarism, absent corpus callosum, cerebellar hypoplasia Cerebellar hypoplasia, intracranial calcifications Hypopituitary, Chiari, myelomeningocele Chiari, cerebellar tonsillar ectopia, hypopituitarism 
Dental Poor hygiene, abnormal tooth development, oral ulcers, gum infections, oral SCC Caries, tooth loss, periodontitis, taurodontism (enlarged pulp chamber), decreased root/crown ratio, leukoplakia, tongue cancer, lichen planus — Caries, oral ulcers 
ENT Head and neck SCC (oral, pharyngeal, hypopharyngeal, laryngeal) Head and neck SCC — — 
Immunology Decreased immunoglobulins, some lymphocyte deficiencies with age Immunodeficiency of immunoglobulins or lymphopenia in younger children Essentially normal Some B- and T-cell deficiencies 
Lung — Pulmonary fibrosis, pulmonary arteriovenous malformations — — 
Hair — Early gray, early hair loss, sparse eyebrows and eyelashes — — 
Vascular complications — Telangiectases and arteriovenous malformations (retinal, GI, pulmonary) — — 
Psychiatry  Some psychiatric problems   
Diagnostic screening test Increased chromosome breakage with DEB or MMC Decreased telomere length by flow FISH Increased red cell adenosine deaminase Decreased pancreatic enzymes (trypsinogen, isoamylase) 
SystemFADCDBASDS
Hematology Aplastic anemia, MDS, AML Aplastic anemia, MDS, AML, lymphomas Anemia, MDS, AML Neutropenia, aplastic anemia, MDS, AML 
Oncology Head and neck SCC (tongue), vulvar SCC, esophagus, brain, skin Head and neck SCC (tongue), anogenital SCC, stomach, lung, esophagus, skin Colon, lung, osteosarcoma, gynecologic, stomach Ovarian cancer 
Perinatal Low birth weight, intrauterine growth retardation Low birth weight, intrauterine growth retardation Low birth weight, hydrops Low birth weight 
Skin Café au lait spots, basal cell, and SCC Lacy reticulated pigmentation, dystrophic nails (soft, brittle, ridged, disappearing), adermatoglyphia, hyperhidrosis, basal cell, and SCCs — Ichthyosis, eczema 
Skeletal Absent or abnormal thumbs, absent or hypoplastic radius; flat thenar eminence; Klippel Feil, congenital hip dislocation Avascular necrosis hips or shoulders, osteoporosis, scoliosis, spontaneous fractures Thumbs triphalangeal, bifid, duplicated, subluxed, extra, hypoplastic; web neck, Sprengel, Klippel-Feil, short neck; scoliosis Metaphyseal dysostosis; small thorax, narrow chest, pectus carinatum; dysplastic hips, bow legs, short legs, Legg Calve Perthes; short neck; scoliosis; flared ribs; osteopenia 
Eyes Microphthalmia, microcornea, ptosis, epicanthal folds, strabismus, cataracts Epiphora (from lacrimal duct stenosis), blepharitis, exudative retinopathy, retinal neovascularization, retinal hemorrhages, entropion, ectropion, cataracts Small, epicanthal folds, hypertelorism, hypotelorism, strabismus, cataract, glaucoma Hypertelorism, retinitis pigmentosum, esotropia 
Kidney Ectopic, horseshoe, absent, small, hydronephrosis, hydroureter — Horseshoe, duplicated, ectopic, absent — 
Gonads, male Small testes, infertility, undescended, micropenis Urethral stricture, phimosis, small testes, undescended testes, meatal stenosis, hypospadias Undescended testes, hypospadias, inguinal hernia Atrophic testes, hypospadias 
Gonads, female Small ovaries, bicornuate uterus, late menarche, early menopause, premature ovarian failure, vulvar cancer, breast cancer Hymenal and urethral stricture — — 
Pregnancies Decreased blood counts, fetal loss, pre-eclampsia, failure of labor to progress, cesarean sections, small babies No apparent problems Worsening of anemia, fetal loss, pre-eclampsia, intrauterine growth retardation, preterm deliveries, fetal malformations, placental infarcts — 
Development Developmental delay, retardation Developmental delay, retardation Developmental delay, retardation Developmental delay, neurocognitive deficits, attention deficit 
Otology Abnormal pinna, narrow canal, conductive or sensory hearing loss Deaf rare Low set, small, deaf Decreased hearing 
Cardiology Congenital heart disease, iron overload Hyperlipidemia Congenital heart disease, iron overload Congenital heart disease 
Endocrine Short, diabetes, metabolic syndrome, growth hormone deficiency, osteoporosis, hypothyroid, delayed bone age Short, bone problems (see skeletal), hypogonadism, elevated cholesterol (on androgens) Short Short 
Gastroenterology Imperforate anus, TE fistula, esophageal/duodenal atresia, annular pancreas, gastric emptying delay, poor weight gain, poor feeding, esophageal SCC Esophageal stenosis, telangiectasias, varices, ulcers, enteropathy (small bowel), enterocolitis (colon), rectal adenocarcinoma Stomach and colon cancer Malabsorption due to exocrine pancreatic insufficiency; diarrhea; inguinal hernia 
Liver Cirrhosis, fibrosis, elevated enzymes, iron overload, androgen toxicity, adenoma, hepatocellular carcinoma, peliosis hepatis Cirrhosis, fibrosis, hepatocellular carcinoma, hepatopulmonary syndrome, portal hypertension, iron overload Iron overload, hepatocellular carcinoma Rare hepatomegaly 
Head Microcephaly Microcephaly Microcephaly, hydrocephalus; cleft palate, cleft lip Microcephaly, macrocephaly, hydrocephaly; cleft palate, cleft lip 
Brain Pituitary stalk interruption, small pituitary, hypopituitarism, absent corpus callosum, cerebellar hypoplasia Cerebellar hypoplasia, intracranial calcifications Hypopituitary, Chiari, myelomeningocele Chiari, cerebellar tonsillar ectopia, hypopituitarism 
Dental Poor hygiene, abnormal tooth development, oral ulcers, gum infections, oral SCC Caries, tooth loss, periodontitis, taurodontism (enlarged pulp chamber), decreased root/crown ratio, leukoplakia, tongue cancer, lichen planus — Caries, oral ulcers 
ENT Head and neck SCC (oral, pharyngeal, hypopharyngeal, laryngeal) Head and neck SCC — — 
Immunology Decreased immunoglobulins, some lymphocyte deficiencies with age Immunodeficiency of immunoglobulins or lymphopenia in younger children Essentially normal Some B- and T-cell deficiencies 
Lung — Pulmonary fibrosis, pulmonary arteriovenous malformations — — 
Hair — Early gray, early hair loss, sparse eyebrows and eyelashes — — 
Vascular complications — Telangiectases and arteriovenous malformations (retinal, GI, pulmonary) — — 
Psychiatry  Some psychiatric problems   
Diagnostic screening test Increased chromosome breakage with DEB or MMC Decreased telomere length by flow FISH Increased red cell adenosine deaminase Decreased pancreatic enzymes (trypsinogen, isoamylase) 

Information is from many sources plus personal experience.1,11,13,33,41,42,46 

DEB, diepoxybutane; ENT, ear, nose, throat; FISH, fluorescence in situ hybridization; GI, gastrointestinal; MMC, mitomycin C; TE, tracheoesophageal.

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